CN1506151A - Static mixer for high medium sticky - Google Patents

Static mixer for high medium sticky Download PDF

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Publication number
CN1506151A
CN1506151A CNA2003101206075A CN200310120607A CN1506151A CN 1506151 A CN1506151 A CN 1506151A CN A2003101206075 A CNA2003101206075 A CN A2003101206075A CN 200310120607 A CN200310120607 A CN 200310120607A CN 1506151 A CN1506151 A CN 1506151A
Authority
CN
China
Prior art keywords
hydrid component
rib
housing
sleeve
static mixer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2003101206075A
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Chinese (zh)
Other versions
CN100506366C (en
Inventor
A���Ѹ���˹��
A·费格利斯特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer Chemtech AG
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Sulzer Chemtech AG
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Filing date
Publication date
Application filed by Sulzer Chemtech AG filed Critical Sulzer Chemtech AG
Publication of CN1506151A publication Critical patent/CN1506151A/en
Application granted granted Critical
Publication of CN100506366C publication Critical patent/CN100506366C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/421—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions by moving the components in a convoluted or labyrinthine path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/362—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4317—Profiled elements, e.g. profiled blades, bars, pillars, columns or chevrons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
    • B01F25/431974—Support members, e.g. tubular collars, with projecting baffles fitted inside the mixing tube or adjacent to the inner wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/47—Mixing liquids with liquids; Emulsifying involving high-viscosity liquids, e.g. asphalt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/581—Devices for influencing the material flow, e.g. "torpedo constructions" or mixing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Abstract

The static mixer (2) for a high-viscosity flowing fluid (20) includes mixing elements (1) which are made as monoliths and sleeve elements (5) in the form of tube pieces by means of which the mixing elements are positioned, as well as a housing (3) into which the sleeve elements are inserted together with the mixing elements. The mixing elements each include a lattice structure (10). Webs of this lattice structure cross at crossing positions (12) which are arranged at bar-like regions (13) transversely to a main flow direction (30) of the fluid, with the main flow direction being given by a longitudinal axis of the housing. The sleeve elements are in contact at their ends via abutment surfaces (50). Cut-outs (54) exist at these ends into which two ribs (41, 42) of the mixing elements are inserted in a shape-matched manner-in a shape complementary to the cut-outs. The ribs are made in the manner of annular segments. Two end surfaces (41a, 41b, 42a, 42b) of each rib are each arranged such that centres of the end surfaces can each be connected by lines which are aligned at least approximately the same as the bar-like regions (13) of the crossing positions. These bar-like regions have cThe static mixer (2) for a high-viscosity flowing fluid (20) includes mixing elements (1) which are made as monoliths and sleeve elements (5) in the form of tube pieces by means of which the mixing el

Description

The static mixer that is used for high-viscous media
Technical field
The present invention relates to a kind of static mixer that is used for high-viscous media of the preamble according to claim 1, and relate to the hydrid component that is used for this blender.
Background technology
Known a kind of static mixer by European patent document EP-A 0646408, the high polymer fused mass of high viscosity has been homogenized with this blender.This blender can perhaps be followed a fused mass blender of the screw of pressurizing unit as a mixing head in the nozzle of injection molding machine as the back.This blender has cylindrical shape, and comprises that a plurality of hydrid components and sleeve, these sleeves are inserted in the columniform hollow space of a housing.Hydrid component is a cast body.They comprise certain structure, and for example cell structure is realized mixed process in fused mass flows through.The many layers that formed by web plate (or former) are formed in this mixer structure that European patent document EP-A 0646408 provides.These layers are aimed on the direction parallel with the longitudinal axis of housing.The web plate of adjacent layer intersects mutually.In a preferred embodiment, sleeve forms the overcoat of a tubulose with the flange shape ring of mixer structure, then mixer structure is arranged in the described overcoat.In adjacent mixer structure, the orientation of layer is each predetermined angle of relative to each other setovering, 90 degree of preferably setovering.
In injection molding machine, the high polymer fused mass under high pressure and with pulse mode is injected mould.Further developed injection molding machine, the mode of these machines makes can improve output and injection pressure.Because the load peak has appearred in the high pressure that replaces, this high pressure is applied to higher mechanical stress on the mounted hydrid component.
Summary of the invention
The purpose of this invention is to provide a kind of static mixer, it can adapt to the requirement in more modern injection molding machine.Blender defined in claim 1 can satisfy this purpose.
The static mixer that is used for the high viscosity streaming flow comprises that the hydrid component and the form that are designed to an integral body are the sleeve member of tube-like piece, by means of these sleeve members hydrid component is positioned, this static mixer also comprises a housing, and sleeve member is inserted in this housing with hydrid component.Each mixer element comprises a cell structure.The web plate of this cell structure intersects at crossover location, these crossover locations transversal the main flow direction of fluid be arranged in the bar-like regions, main flow direction is set by the longitudinal axis of housing.Sleeve part is realized contact in their end by abutment surface.Have in these ends and to cut away part, promptly cut away in the part two ribs of hydrid component are inserted these with the mode of cutting away the partial shape complementation in the mode of form fit.These ribs are made the form of ring segment.Each surface in two end surfaces of each rib can be arranged such that the center of each end surfaces can be coupled together by some lines, and these lines are aimed at as the bar-like regions of crossover location at least approx.The cross section surface of these bar-like regions is big unlike the cross section surface that the footpath of rib makes progress.
The preferred embodiment that dependent claims 2 to 4 relates to according to blender of the present invention.Claim 5 and 6 relates to the hydrid component of this blender.
Description of drawings
Explain the present invention below with reference to figure, in the drawings:
Fig. 1 illustrates a known hydrid component;
Fig. 2 partly illustrates the nozzle that has mixing head;
Fig. 3 illustrates the hydrid component that passes Fig. 1 and the longitudinal sectional drawing of sleeve part;
Fig. 4 illustrates according to first kind of hydrid component of the present invention;
Fig. 5 illustrates according to second kind of hydrid component of the present invention;
Fig. 6 illustrates another kind of improved embodiment; And
Fig. 7 illustrates the sleeve part of the hydrid component that is used for Fig. 6.
The specific embodiment
Being provided for the static mixer that high-viscosity fluid stream homogenizes and comprising a housing, is that the sleeve part of tube-like piece inserts in this housing with hydrid component with form.Hydrid component is located with sleeve part.In Fig. 1 and 3, show a kind of known hydrid component 1, it can be made an integral body (or single piece body), and can for example produce this parts by means of hot investment casting.In this method, form casting mould with a cured body, a ceramic package is applied on the cured body, remove cured subsequently and the burning ceramic package.Make the fluid that will homogenize be a kind of high polymer fused mass 20 at the static mixer that flows through on the main flow direction 30 in a housing 3, see Fig. 2, the longitudinal axis of housing 3 is determined this main flow direction.
A kind of is that grid-like mixer structure 10 and ring 4 formation forms are the hydrid component 1 of whole body for mixing effective structure.Mixer structure 10 is made of the web plate of arranging with layer (or former) 11.Every block of web plate 11 has rectangle or square sectional.These layers are directed in parallel with each other on main flow direction 30.The web plate 11 of adjacent layer intersects mutually, and comprises a uniform miter angle about main flow direction 30.The size of this angle can be 10 to 70 degree.The web plate 1 of mixer structure 10 intersects at crossover location 12 places, these crossover locations transversal main flow direction 30 be arranged in 13 places, shaft-like zone.
In Fig. 2, the housing 3 that illustrates has static mixer 2, that is, a nozzle 31 that has a mixing head is such as what use in injection molding machine.In static mixer 2, can identify sleeve is the ring 4 of sleeve part 5 and hydrid component 1.The external diameter of static mixer 2 makes and can be fitted into the mode of blender with form fit in the cylindrical inner volume of housing 3 with this external diameter.
Fig. 3 shows the hydrid component that passes Fig. 1 and passes the longitudinal sectional drawing of the part of sleeve part 5.Partly show adjacent hydrid component 1 in dashdotted mode, profile.The cross-sectional area of this longitudinal profile is positioned at along the border of two adjacent layers.In this section, the shaft-like zone 13 of crossover location 12 can be considered as section.Below, these zones are abbreviated as " crossbar 13 ".
Use about static mixer in injection molding machine 2, hydrid component 1 is exposed to a load, this load forms an anisotropic stretch behavior: because high pressure, the high polymer fused mass must be carried under this high pressure, and the volume of the inner space of housing will increase.Hydrid component 1 is limited by Volume Changes on transversal the direction of crossbar 13 (arrow 24a, 24b in Fig. 1).Promptly on the direction of crossbar 13, be out of shape significantly little perpendicular to this direction.The pulse change of pressure causes the cyclically-varying of the shape of hydrid component 10, this variation with ring in 4 high local stress be associated.
Fig. 4 shows according to first kind of hydrid component 1 of the present invention, and the load peak that produces in these parts will be significantly little.Although known hydrid component has a circumferential hoop 4, and now, in new hydrid component, have section or rib 41 and 42 of two annulars.This new geometry makes that to compare stretch behavior more even with known hydrid component 1 shown in Figure 1, makes that the maximum stress that occurs is less.Therefore, the high polymer fused mass of carrying with impulse form 20 applies a not too high material load with the pressure that raises and reduce.
Sleeve part 5 is realized contact in their end by the position that reclines.Have in these ends and to cut away part, promptly cut away in the part two ribs 41,42 of hydrid component 1 are inserted into these with the mode of cutting away the partial shape complementation (for example seeing Fig. 6 and 7) in the mode of form fit.Rib 41,42 is parallel with crossbar 13 basically: two end surfaces 41a, 41b of rib 41,42 or 42a, each surface among the 42b is arranged such that respectively the center of their end surfaces can couple together by some lines, and these lines align with the same line of crossbar 13 at least approx.For the reason of intensity, the cross section surface that the footpath of rib 41,42 is made progress is made than crossbar 13 bigger cross section surface.
Fig. 6 shows the hydrid component 1 of Fig. 5, in this embodiment, one side is at the crossover location 12 of web plate 11, and be connected to rib 41 at web plate 11 on the other hand, link position on 42 forms the bight, transition portion as continuous bend: in the peripheral region of these transition portions, the face component 111 and 112 that slick and sly surface section 110 will transversely keep each other couples together.The radius of curvature of these surface sections 110 is approximately big by 10% than the diameter of the web plate on the diagonal.During work, in the bight of the indentations of the embodiment shown in Fig. 5, form the peak value of stress.By making the bight slyness that becomes reduce these peak stresses significantly.
Fig. 7 shows the sleeve member 5 of the hydrid component 1 that is used for Fig. 6.To be used for rib 41,42 wedge shape cut away those zones that part 54 is restricted to the inwall that can not be stretched over housing 3.A little convex ridge 53 on the outer surface of sleeve member 5 shelters from the summit 45 of wedge ribs 41,42, makes it not contact with housing 3.This is favourable for blender 2 being advanced housings 3 and being pulled out by housing 3, because the phenomenon that can occur blocking again not, and therefore, make the installation of blender become simpler significantly.Only half enters cutting away in the part 54 of sleeve member 5 to the rib 41,42 of wedge shape in each case.Adjacent sleeve member (not shown) holds second half.Adjacent sleeve member 5 is realized contact in their end by plane abutment surface 50.
Except the measure (that is, the bight of rib and rounding) of the mechanical stability of above-mentioned improvement hydrid component 1 in addition, selecting a kind of desirable material also is to realize another means of same purpose.Preferably use inconel (inconel) particularly IN718 as the founding materials of hydrid component 1.Sleeve member 5 can be produced accurate dimensions by a kind of heat treatable steel.
By grind the rib 41,42 of the hydrid component 1 that can process casting again on their surface.This purpose of processing again is for obtaining to fit into the accurate shape in the part of cutting away of sleeve member 5.

Claims (6)

1. static mixer (2) that is used for high viscosity streaming flow (20), it and hydrid component (1) are made an integral body, it has the sleeve member that form is a tube-like piece (5), by means of these sleeve members hydrid component is positioned, static mixer also has housing (3), sleeve member is inserted in this housing with hydrid component, each mixer element comprises cell structure (10), the web plate of this cell structure intersects at crossover location (12), these crossover locations transversal the main flow direction of fluid (30) be arranged in the bar-like regions (13), and main flow direction is given by the longitudinal axis of housing
It is characterized in that sleeve part is realized contact in their end by abutment surface (50); Wherein, cut away part (54) in these ends, promptly cut away in the part two ribs (41,42) of hydrid component are inserted into these with the mode of cutting away the partial shape complementation in the mode of form fit; Wherein, these ribs are made the form of ring segment; Wherein, and two end surfaces of each rib (41a, 41b, 42a, 42b) each surface in can be arranged so that the center of each end surfaces can be coupled together by some lines, these lines align with the same line of the bar-like regions (13) of crossover location at least approx; Wherein, the cross section surface of these bar-like regions is not more than the cross section surface that the footpath of rib makes progress.
2. according to the described blender of right claim 1, it is characterized in that each web plate (11) has rectangular cross section, approximate at least foursquare cross section is preferably arranged; Wherein, form transition portion, make that in the peripheral region of these transition portions the face component (111,112) that slick and sly surface section (110) will transversely keep each other couples together at the crossover location of web plate and the link position that is connected on the rib at web plate; Wherein, the radius of curvature of these surface sections is bigger by 10% than the diameter of diagonal online plate.
3. according to right claim 1 or 2 described blenders, it is characterized in that rib (41,42) cross section surface diametrically is a wedge shape, the summit of wedge shape (45) direction outwardly.
4. according to each described blender in the right claim 1 to 3, it is characterized in that, will be used for those zones that part (54) is restricted to the inwall that can not be stretched over housing of cutting away of rib (41,42).
5. hydrid component (1) that is used for according to each described blender (2) of right claim 1 to 4.
6. according to the described hydrid component of right claim 5, it is characterized in that, by grinding the rib (41,42) that can process hydrid component (1) again on their surface, this purpose of processing again is for obtaining to be coupled to the accurate shape in the part (54) of cutting away of sleeve member (5).
CNB2003101206075A 2002-12-13 2003-12-15 Static mixer for high medium sticky Expired - Fee Related CN100506366C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02406099.8 2002-12-13
EP02406099 2002-12-13

Publications (2)

Publication Number Publication Date
CN1506151A true CN1506151A (en) 2004-06-23
CN100506366C CN100506366C (en) 2009-07-01

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Country Status (6)

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US (1) US7040802B2 (en)
JP (1) JP4411051B2 (en)
CN (1) CN100506366C (en)
BR (1) BR0305996A (en)
CA (1) CA2442780C (en)
DE (1) DE50302182D1 (en)

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BR0305996A (en) 2004-09-14
CA2442780C (en) 2007-12-11
CN100506366C (en) 2009-07-01
US20040114461A1 (en) 2004-06-17
CA2442780A1 (en) 2004-06-13
JP4411051B2 (en) 2010-02-10
JP2004195452A (en) 2004-07-15
US7040802B2 (en) 2006-05-09

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